The two senators asked Pompeo to provide “all classified and unclassified cable traffic, memoranda of conversations, interpreter’s notes and policy directives related to the meeting, and if no such documents exist, to confirm so.”

Menendez is the ranking member on the committee, on which Shaheen also sits.

The summit was the subject of bipartisan criticism surrounding an hours-long sit down the two leaders had with no aides except translators. The White House has not released any details on what was discussed, while the Kremlin has released statements claiming Trump made commitments on issues such as Ukraine and Syria.

Trump also faced pushback from both sides of the aisle following an ensuing bilateral press conference with Putin in which he appeared to take the Russian president’s word over that of the U.S. intelligence committee that Russia did not interfere in the 2016 presidential election.

The president walked back those comments a day later, but the senators still pointed to the press conference as a concern.

“The public press conference in which the President called the United States ‘foolish’ and praised Putin’s election meddling denial as ‘strong and powerful’ continues to be the only firsthand, U.S. account the American people have of what was addressed,” Menendez and Shaheen wrote.

“Our concern about this meeting is heightened by the ongoing Special Counsel investigation into potential ties between the 2016 Trump presidential campaign and Russian intelligence operatives and others who sought to interfere in our democratic process. There is an urgent need to address this matter given the continued interference by Russia in the upcoming 2018 midterm elections,” they wrote.